Topic Menu

Cyber-chess a chess instruction site

GCSE level questions on the Earth in Space

Q16.

(a) Complete the following sentences.

The Sun is a stable star. This is because the forces pulling inwards caused by _ _ _ _ _ _ _ _ are in equilibrium with the forces pushing outwards caused by the energy released by nuclear _ _ _ _ _ _ _.

[2 marks]

(b)

(i) Write down the equation that links distance travelled (s), speed (v) and time (t).

[1 mark]

(ii) The mean distance between the Sun and the Earth is 0.15 Tm.

Given that light travels at a speed of 3.0 × 108 m/s.

Calculate the time taken for light from the Sun to reach the Earth.

[4 marks]

(c) Some stars are much more massive than the Sun.

Describe the life cycle of stars much more massive than the Sun, including the formation of new elements.

[6 marks]

(d) Stars emit radiation with a range of wavelengths.

Tick the box that contains the property of a star that the range of wavelengths depend on.

Density  
Mass  
Temperature  
Volume  

[1 mark]

(Total 14 marks)